package org.openfantasia.musica.instruments.jmusic;

import jm.audio.AudioObject;
import jm.audio.Instrument;
import jm.audio.io.SampleOut;
import jm.audio.synth.*;

/**
 * A multiple sawtooth instrument implementation
 * which has each wave detuned.
 *
 * @author Andrew Brown, Nick Coleman and Andrew Sorensen
 */

public final class SuperSawInst extends Instrument {
	//----------------------------------------------
	// Attributes
	//----------------------------------------------

	/**
	 * The points to use in the construction of Envelopes
	 */
	private EnvPoint[] pointArray = new EnvPoint[10];

	/**
	 * the same rate
	 */
	private int sampleRate;

	/**
	 * The frequency ratio between wavefroms
	 */
	private double detune;

	//----------------------------------------------
	// Constructor
	//----------------------------------------------


	/**
	 * Basic default constructor to set an initial sample rate
	 *
	 * @param sampleRate
	 */
	public SuperSawInst(int sampleRate) {
		this(sampleRate, 0.001);
	}


	/**
	 * Basic default constructor to set an initial sample rate
	 *
	 * @param sampleRate
	 */
	public SuperSawInst(int sampleRate, double detune) {
		this.sampleRate = sampleRate;
		this.detune = detune;
		EnvPoint[] tempArray = {
				new EnvPoint((float) 0.0, (float) 0.0),
				new EnvPoint((float) 0.02, (float) 1.0),
				new EnvPoint((float) 0.15, (float) 0.6),
				new EnvPoint((float) 0.9, (float) 0.3),
				new EnvPoint((float) 1.0, (float) 0.0)
		};
		pointArray = tempArray;
	}

	//----------------------------------------------
	// Methods 
	//----------------------------------------------


	/**
	 * Initialisation method used to build the objects that
	 * this instrument will use
	 */
	public void createChain() {
		Oscillator wt1 = new Oscillator(this, Oscillator.SAWTOOTH_WAVE, this.sampleRate, 2);
		Oscillator wt2 = new Oscillator(this, Oscillator.SAWTOOTH_WAVE, this.sampleRate, 2);
		wt2.setFrqRatio((float) (1.0 + detune));
		Oscillator wt3 = new Oscillator(this, Oscillator.SAWTOOTH_WAVE, this.sampleRate, 2);
		wt3.setFrqRatio((float) (1.0 - detune * 2));
		Oscillator wt4 = new Oscillator(this, Oscillator.SAWTOOTH_WAVE, this.sampleRate, 2);
		wt4.setFrqRatio((float) (1.0 + detune * 2));
		Oscillator wt5 = new Oscillator(this, Oscillator.SAWTOOTH_WAVE, this.sampleRate, 2);
		wt5.setFrqRatio((float) (1.0 - detune));
		Oscillator wt6 = new Oscillator(this, Oscillator.SAWTOOTH_WAVE, this.sampleRate, 2);
		wt6.setFrqRatio((float) (1.0 + detune * 3));
		Oscillator wt7 = new Oscillator(this, Oscillator.SAWTOOTH_WAVE, this.sampleRate, 2);
		wt7.setFrqRatio((float) (1.0 - detune * 3));
		AudioObject[] waves = {wt1, wt2, wt3, wt4, wt5, wt6, wt7};
		Add add = new Add(waves);
		Envelope env = new Envelope(add, pointArray);
		Volume vol = new Volume(env);
		StereoPan span = new StereoPan(vol);
		SampleOut sout = new SampleOut(span);
	}
}

